Mobile provider EE plans to double the speed and capacity of its 4G network.
Average speeds on the network currently range between 8Mbps and 12Mbps but this is to be given a boost to more than 20Mbps.
The service is expected to enable users to surf the web much more quickly on mobile phones.
The increased 4G capability is due to roll out to ten existing 4G cities by summer – Birmingham, Bristol, Cardiff, Edinburgh, Glasgow, Leeds, Liverpool, London, Manchester and Sheffield.
The company says that trials in Cardiff are have already seen speeds reach 80Mbps plus.
Once switched on, the improvements will be automatically available in those cities within existing plans to new and current 4GEE customers on all 4G smartphones, tablets and dongles.